DNA Marker Index information for Chromosome: Y Marker: B2138.2Names and Aliases for this DNA Marker: B2138.2, Y62607.2, rs866709564.Chromosome Position in hg38 Human Genome assembly1: 7944162.Chromosome Position in hg19 assembly2: 7812203 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.